[libwnck] Revert "[build] Fix build when building out of source tree"

[Vincent Untz <vuntz src gnome org>]

commit 9f2add192c6fcc3275eff23bfd00287b92ae7dc9
Author: Vincent Untz <vuntz gnome org>
Date:   Tue Jun 22 05:09:28 2010 +0200

    Revert "[build] Fix build when building out of source tree"
    
    This reverts commit fbc16c75f97eea84f9fe1d742ee63c9033486786.
    
    It breaks distcheck.

 libwnck/Makefile.am |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)
---
diff --git a/libwnck/Makefile.am b/libwnck/Makefile.am
index 42103b4..4d14dea 100644
--- a/libwnck/Makefile.am
+++ b/libwnck/Makefile.am
@@ -171,8 +171,7 @@ INTROSPECTION_SCANNER_ARGS = --add-include-path=$(srcdir)
 INTROSPECTION_COMPILER_ARGS = --includedir=$(srcdir)
 
 if HAVE_INTROSPECTION
-introspection_sources = $(wnck_sources) $(wnck_headers)
-introspection_built_sources = $(wnck_built_installed_headers)
+introspection_sources = $(wnck_sources) $(libwnckinclude_HEADERS)
 
 Wnck-1.0.gir: libwnck-1.la Makefile
 Wnck_1_0_gir_INCLUDES = GObject-2.0 Gtk-2.0
@@ -182,9 +181,7 @@ Wnck_1_0_gir_CFLAGS =			\
 	-DWNCK_I_KNOW_THIS_IS_UNSTABLE	\
 	-DSN_API_NOT_YET_FROZEN=1
 Wnck_1_0_gir_LIBS = libwnck-1.la
-Wnck_1_0_gir_FILES = \
-	$(addprefix $(srcdir)/,$(introspection_sources))	\
-	$(introspection_built_sources)
+Wnck_1_0_gir_FILES = $(addprefix $(srcdir)/,$(introspection_sources))
 INTROSPECTION_GIRS += Wnck-1.0.gir
 
 girdir = $(datadir)/gir-1.0